Q5 of 805 Page 14

Let A, B be the centres of two circles of equal radii; draw them so that each one of them passes through the centre of the other. Let them intersect at C and D.
Examine whether and are at right angles.

Step 1: Draw a line segment of any given length

Step 2: With A as center and radius AB draw a circle. With B as a center and radius, BA draw a circle. Join C and D. Measure angle with a protractor.

So AB is perpendicular to CD.

Draw a circle and any two of its diameters. If you join the ends of these diameters, what is the figure obtaines?

What figure is obtained, if the diameters are perpendicular to each other? How do you check your answer?

Draw any circle and mark points A, B and C such that

(a) A is on the circle.

(b) B is in the interior of the circle.

Draw a line segment of length 7.3 cm, using a ruler.

Construct a line segment of length 5.6 cm, using ruler and compasses.

Let A, B be the centres of two circles of equal radii; draw them so that each one of them passes through the centre of the other. Let them intersect at C and D.Examine whether and are at right angles.